Usually when the FAA issues notice of a proposal, it receives dozens, sometimes hundreds of comments from interested parties. In the case of the lithium ion special condition, FAA spokesman Les Dorr told me, the agency received just one, from the Air Line Pilots Association.

Reading the comment is a bit like reading a recipe backwards, because it also incorporates discussion of emails between the two but the emails themselves are not included. With studious concentration I can figure out this much: The folks at the pointy end of the airplane were concerned from the start about their inability to combat a fire in the - to them - maybe-likely-chance of one erupting in flight.

"We are very concerned with a fire erupting in flight, and being able to rapidly extinguish it. The Special Conditions should require that there be a means provided to apply extinguishing agents," ALPA writes in the comment submitted in mid-2007. "ALPA maintains that the petitioner must provide means for extinguishing fires that occur," the comment continues.

Now here's where it gets interesting. The FAA opts not to accept the ALPA suggestion for fire fighting, because as it explains to ALPA, a fire in any situation is unacceptable.

Five and one half years later we have fire in a battery followed by the plain spoken analysis of this from the chairman of the National Transportation Safety Board. Curiously, attempts by Boeing to get the Dreamliner back in service do not hew to the presumption that "fire in any situation is unacceptable", it takes a different route, a fancy box that will contain a fire and vent the fumes, according to various news accounts.

With everybody asking the FAA, "when, When, WHEN?" , the agency issued a statement promising, "we won't allow the 787 to return to commercial service until we're confident that any proposed solution has addressed the battery failure risks."

I leave it to the folks who are smart enough to dissect federal regulations to explain how the FAA can allow a fire containment box within a mandate that the battery.not.catch.fire. But from the sidelines, I'd bet any attempt by Boeing to return this airplane to service without meeting the special condition just.won't.fly.